The slapi-nis plug-in before 0.54.2 does not properly reallocate memory when processing user accounts, which allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a request for a (1) group with a large number of members or (2) user that belongs to a large number of groups.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Slapi-nis | Redhat | * | 0.54.1 (including) |
| Red Hat Enterprise Linux 7 | RedHat | ipa-0:4.1.0-18.el7_1.3 | * |
| Red Hat Enterprise Linux 7 | RedHat | slapi-nis-0:0.54-3.ael7b_1 | * |
| Slapi-nis | Ubuntu | artful | * |
| Slapi-nis | Ubuntu | upstream | * |
| Slapi-nis | Ubuntu | vivid | * |
| Slapi-nis | Ubuntu | wily | * |
| Slapi-nis | Ubuntu | yakkety | * |
| Slapi-nis | Ubuntu | zesty | * |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154314.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/154103.html
- http://rhn.redhat.com/errata/RHSA-2015-0728.html
- http://www.securityfocus.com/bid/73377
- https://bugzilla.redhat.com/show_bug.cgi?id=1195729
- https://git.fedorahosted.org/cgit/slapi-nis.git/commit/?id=6573f91c95f7a353ad3bdf2fe95b0c15932aa097
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154314.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/154103.html
- http://rhn.redhat.com/errata/RHSA-2015-0728.html
- http://www.securityfocus.com/bid/73377
- https://bugzilla.redhat.com/show_bug.cgi?id=1195729
- https://git.fedorahosted.org/cgit/slapi-nis.git/commit/?id=6573f91c95f7a353ad3bdf2fe95b0c15932aa097